Repairs to Roto Tilt and Slide doors in Kilburn

Tilt and slide system by Roto Brondesbury NW6.

The gearing is broken and above all the door is jammed in the locked position. The handle side gearing will need to be replaced. Therefore as it is an old system probably the whole gearing will need to be replaced. 

We cannot be sure as a result whether the runners need replacing or not as yet because the door cannot be opened to do a full survey.